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Towards Indicators for a Negative Emissions Climate Stabilisation Index: Problems and Prospects

1
The Centre for Climate Science and Policy Research and the Department of Thematic Studies, Unit of Environmental Change, Linköping University, SE-581 83 Linköping, Sweden
2
Department of Thematic Studies, Unit of Technology and Social Change, Linköping University, SE-581 83 Linköping, Sweden
*
Author to whom correspondence should be addressed.
Climate 2020, 8(6), 75; https://doi.org/10.3390/cli8060075
Received: 25 May 2020 / Revised: 9 June 2020 / Accepted: 9 June 2020 / Published: 11 June 2020
The incongruence between the United Nations objective to hold global warming well below 2 °C and the rate of global emission reductions has intensified interest in negative emissions. Previous research has explored several pros and cons of individual negative emissions technologies. Systematised approaches to comparing and prioritising among them are, however, largely lacking. In response to this gap in the literature, this article reviews the scientific literature on indicators for designing negative emissions climate stabilisation value indexes. An index typically provides summary measures of several components, often denoted indicators. Utilizing a narrative review methodology, the article derives five categories of indicators underpinned by overlapping and often mutually reinforcing environmental and socio-economic values. A list of 21 indicators are proposed to capture both positive and negative values associated with effectiveness, efficiency, scale, risk, and synergies. While discussing indicators capable of providing guidance on negative emissions is timely, given the emerging shift away from pure emission reduction targets towards net-zero targets, numerous complexities are involved in determining their relative values. The results herein serve to inform policy making on the prioritisation and incentivisation of negative emissions technologies capable of delivering on the new objectives, and the results highlight the many risks and uncertainties involved in such exercises. The article concludes that systematic research on the comparison of NETs is incomplete. An iterative, interdisciplinary research programme exploring such questions has the potential to be extremely rewarding. View Full-Text
Keywords: carbon dioxide removals; CDR; negative emissions technologies; NETs; value index; indicators carbon dioxide removals; CDR; negative emissions technologies; NETs; value index; indicators
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MDPI and ACS Style

Fridahl, M.; Hansson, A.; Haikola, S. Towards Indicators for a Negative Emissions Climate Stabilisation Index: Problems and Prospects. Climate 2020, 8, 75. https://doi.org/10.3390/cli8060075

AMA Style

Fridahl M, Hansson A, Haikola S. Towards Indicators for a Negative Emissions Climate Stabilisation Index: Problems and Prospects. Climate. 2020; 8(6):75. https://doi.org/10.3390/cli8060075

Chicago/Turabian Style

Fridahl, Mathias, Anders Hansson, and Simon Haikola. 2020. "Towards Indicators for a Negative Emissions Climate Stabilisation Index: Problems and Prospects" Climate 8, no. 6: 75. https://doi.org/10.3390/cli8060075

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